Erythrolain or Erythrolein: How To spell?

The word Erythrolain is misspelled against Erythrolein, a noun meaning "A red substance obtained from litmus."

Word contains consecutive vowels 'EI' in between alphabets erythrol & n is misspelled as 'AI'
Wrong Spelling:  erythrol-ai-n 
Correct Spelling:  erythrol-ei-n 
Find more incorrect spellings of Erythrolein to spell right way.